> ## Documentation Index
> Fetch the complete documentation index at: https://cantonfoundation-generated-reference-full-stack-preview.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# POST /v2/packages

> Behaves the same as /dars. This endpoint will be deprecated and removed in a future release. Upload a DAR file to the participant. If vetting is enabled in the request, the DAR is checked for upgrade compatibility with the set of the already vetted packages on the target vetting synchronizer See UploadDarFileRequest for details regarding vetting and the target vetting synchronizer.

<div class="x2mdx-ref-page x2mdx-ref-page--operation x2mdx-ref-page--manual-api" />

<div class="x2mdx-ref-hero">
  <p class="x2mdx-ref-summary">Behaves the same as /dars. This endpoint will be deprecated and removed in a future release. Upload a DAR file to the participant. If vetting is enabled in the request, the DAR is checked for upgrade compatibility with the set of the already vetted packages on the target vetting synchronizer See UploadDarFileRequest for details regarding vetting and the target vetting synchronizer.</p>

  <div class="x2mdx-ref-badges">
    <span class="x2mdx-ref-badge x2mdx-ref-badge--protocol">OpenAPI</span>

    <a class="x2mdx-ref-badge x2mdx-ref-badge--changed" href="#history-updated-3-5">Updated 3.5</a>
  </div>
</div>

<RequestExample>
  ```bash cURL theme={"theme":{"light":"github-light","dark":"github-dark"}}
  curl --request POST \
    --url 'http://localhost:7575/v2/packages' \
    --header 'Authorization: Bearer $TOKEN' \
    --header 'Content-Type: application/octet-stream' \
    --data-binary '@request.bin'
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={"theme":{"light":"github-light","dark":"github-dark"}}
  {}
  ```

  ```text 400 theme={"theme":{"light":"github-light","dark":"github-dark"}}
  <string>
  ```

  ```json default theme={"theme":{"light":"github-light","dark":"github-dark"}}
  {
    "code": "<string>",
    "cause": "<string>",
    "correlationId": "<string>",
    "traceId": "<string>",
    "context": {},
    "resources": [
      [
        "<string>"
      ]
    ],
    "errorCategory": 123,
    "grpcCodeValue": 123,
    "retryInfo": "<string>",
    "definiteAnswer": false
  }
  ```
</ResponseExample>

## Authorizations

### httpAuth

<ParamField header="Authorization" type="string" required>
  HTTP bearer authentication. Send the token as `Authorization: Bearer &lt;token&gt;`. Ledger API standard JWT token
</ParamField>

### apiKeyAuth

<ParamField header="Sec-WebSocket-Protocol" type="string" required>
  API key authentication in the header. Ledger API standard JWT token (websocket)
</ParamField>

## Query parameters

<ParamField query="vetAllPackages" type="boolean" />

<ParamField query="synchronizerId" type="string" />

## Body

<div class="x2mdx-ref-badges">
  <span class="x2mdx-ref-badge x2mdx-ref-badge--neutral">application/octet-stream</span>
</div>

<ParamField body="value" type="string" required>
  OpenAPI type: <code>string (binary)</code>.
</ParamField>

## Responses

### 200

<div class="x2mdx-ref-badges">
  <span class="x2mdx-ref-badge x2mdx-ref-badge--neutral">application/json</span>
</div>

<ResponseField name="value" type="UploadDarFileResponse" required>
  A message that is received when the upload operation succeeded.
</ResponseField>

### 400

Invalid value, Invalid value for: body, Invalid value for: query parameter vetAllPackages, Invalid value for: query parameter synchronizerId

<div class="x2mdx-ref-badges">
  <span class="x2mdx-ref-badge x2mdx-ref-badge--neutral">text/plain</span>
</div>

<ResponseField name="value" type="string" required />

### default

<div class="x2mdx-ref-badges">
  <span class="x2mdx-ref-badge x2mdx-ref-badge--neutral">application/json</span>
</div>

<ResponseField name="code" type="string" required />

<ResponseField name="cause" type="string" required />

<ResponseField name="correlationId" type="string" />

<ResponseField name="traceId" type="string" />

<ResponseField name="context" type="Map_String" required />

<ResponseField name="resources" type="Tuple2_String_String[]" />

<ResponseField name="errorCategory" type="integer (int32)" required />

<ResponseField name="grpcCodeValue" type="integer (int32)" />

<ResponseField name="retryInfo" type="string" />

<ResponseField name="definiteAnswer" type="boolean" />

## History

<div class="x2mdx-ref-history" aria-label="Reference history">
  <div class="x2mdx-ref-history-event x2mdx-ref-history-event--changed" id="history-updated-3-5">
    <div class="x2mdx-ref-history-event-head">
      <span class="x2mdx-ref-history-event-label">Updated</span>
      <code class="x2mdx-ref-history-event-version">3.5</code>
    </div>

    <p class="x2mdx-ref-history-event-detail">The POST /v2/packages operation changed in this snapshot.</p>
  </div>
</div>